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authorized service providers

2600Hz Inc.

382 Communications

702 Communications

8x8 Inc.

A+ Wireless

Access Tandem, Inc

AccessLine Communications Corp.

Adams Telephone Co-Operative

Affiliated Technology Solutions, LLC

Airespring, Inc.

Albany Mutual Telephone Association

ALD Telecom

All Tel Networks, LLC

Alliance Communications

ALLO Communication

Allstream Business US, LLC

Altaworx

Altice USA

American Broadband and Telecommunications Co.

Amplex Electric, Inc. dba Amplex Internet

ANPI BUSINESS, LLC

Apeiron Systems

Arkwest Communications

Armstrong Telecommunications, Inc

Arvig

Assurance Telecom, LLC

AT&T

ATC Communications

Atlantech Online Inc.

ATV Holdings, LLC

Ballard Rural Telephone Cooperative Corporation, Inc.

Balsamwest FiberNet LLC

Baltimore-Washington Telephone Company

Bandwidth.com CLEC, LLC

Barnesville Municipal Telephone

Barr Tell USA, Inc

BBT

Beresford Municipal Telephone Co.

Big River Telephone

Block Line Systems, LLC

Blue Earth Valley Telephone Company, Inc.

Bluetone Communications, LLC

BluIP, Inc.

Brazoria Telephone Company (Btel)

Brightlink Communications LLC

Bristol Tennessee Essential Services

Broadband Dynamics LLC

BroadRiver Communication, Inc

Brookings Munincipal Utilities d/b/a Swiftel Communications

BTC Broadband

Buckeye Telesystem, Inc

Bulk Solutions, LLC

Bulloch County Rural Telephone Cooperative, Inc

BullsEye Telecom

Business Telecommunications Services, Inc

Call Tools, Inc.

CallShaper, LLC

Cal-Ore Telephone

Carnegie Telephone Company Inc.

Carolina Digital Phone Inc

Carolina West Wireless

CBTS Technology Solutions LLC

CCI Network Services, LLC

Cellular South Licenses 

Charter Communications, Inc.

Chickasaw Telephone Company

City of Faith Telephone Company

City of Ketchikan DBA Ketchikan Public Utilities

CLARO ENTERPRISE SOLUTIONS, LLC

Clay County Rural Telephone Cooperative, Inc.

Clear Lake Telephone

Clear Rate Communications, Inc

Clearly IP Inc

CMS Internet

Coeo Solutions

Columbus Telephone Co

Comcast IP Phone, LLC

Commio

Comporium, Inc.

Computer Telephony Innovations Inc. dba Voxtelesys

Comtel Managed Solutions

ConnectMe, LLC

Consolidated Communications

Convoso, Inc.

CoreDial, LLC

CORETEL VIRGINIA, LLC

Cox Communications, Inc.

Critical Hub Networks

Crocker Communications, Inc.

CTC

Custer Telephone Cooperative Inc.

CyberNet Communications, Inc.

Data@ccess Communications

Daviess-Martin County Rural Telephone Corporation DBA RTC Communications

DayStarr LLC

Delta Communications LLC, dba Clearwave Communications

Dickey Rural Telephone Cooperative

Digital Agent

digitalIPvoice, Inc

DISH Wireless L.L.C.

DLS Internet Services

Duo Broadband

East Kentucky Network, LLC

Eastern Slope Rural Telephone Association, Inc.

Eastex Tel. Coop. Inc.

Easton Telecom Services LLC

Emily Cooperative Telephone Company

ENA Services, LLC

Everstream Indianapolis

EvolveIP LLC

Farmers Mutual Telephone Company (Idaho) 

Farmers Mutual Telephone Company (Iowa)

Farmers Mutual Telephone Company (Minnesota) 

Federated Telephone Cooperative

Fidelity Communications

First Communications, LLC

FirstDigital Telecom LLC

FirstLight Fiber Inc.

Five9, Inc.

Fonative, Inc

Foothills Rural Telephone Coop. Corp., Inc.

FracTEL, LLC

France Telecom Corporate Solutions L.L.C. 

Frontier Communications

Fullnet Advanced Communications Inc

Fusion Cloud Services, LLC

Fuze, Inc.

Garden Valley Telephone Company

Gardonville Cooperative Telephone Association

GCI Communication Corp.

GetGo Communications, LLC

Giant Communications, Inc.

Gila River Telecommunications, Inc

Globalstar

Golden West Telecommunications Cooperative, Inc.

Google Voice Inc.

Granite Telecommunications, LLC

Greenfly Networks Inc dba Clearfly Communications

GTT Americas, LLC

Hadlo Technologies, LLC

Harmony Telephone Company

Hawaiian Telcom

HD CARRIER LLC

HFA Services LLC dba Call48

Home Telephone Company (Illinois) 

Home Telephone Company (South Carolina) 

Hunt Telecommunications

Hunter Communications

IdeaTek Telcom, LLC

IDT America, Corp

IFN.com Inc

Impulse

Indigo Wireless

Inland Cellular

Integrated Technology Services

IntelePeer Networks LLC

Inteliquent

IntelliVoice

Intrado Communications, LLC

Inventive Labs Corp

IP Global, LLC

IP Networked Services, Inc

IPitomy Communications, LLC

IPtelX LLC

James Valley Telecommunications

JiveTel Inc.

KanOkla Networks

Kennebec Telephone Co., Inc.

KEPS TECHNOLOGIES INC

KMTelecom

LATAM Telecommunications, LLC

Lenox Municipal Utilities

Liberty Cablevision of Puerto Rico LLC

Limitless Mobile, LLC

Lincolnville Communications, Inc.

LiveVox, Inc.

Logix Fiber Networks

Low Latency Communications LLC

LUMEN

Lumos Telephone Inc.

Mabel Cooperative Telephone Company

MagicJack

Magna5, LLC

Manhattan Telecommunications Corporation.

Masergy Communications, Inc.

MASH Telecom Inc

Matrix Telecom, LLC

MCC Network Services, LLC

McDonough Telephone Cooperative

McNabb Telephone Co.

Mediacom Communications Corporation

Metro Fibernet, LLC

Microtalk USA, Inc.

Mid Century Tel. Coop. Inc.

Midcontinent Communications

Midstate Communications

MIDTEL - Middleburgh Telephone Co

MIDVALE TELEPHONE COMPANY, INC

Mix Networks, Inc.

Momentum Telecom

Monon Telephone Company Inc.

Mountain Telephone

Muenster Telephone Corp. of Texas

Multitel LLC.

MUS Fiber

Nemont Telephone Cooperative Inc

Netcarrier Telecom Inc.

NetFortris

NETRIO LLC

New Horizon Communications

New Lisbon Telephone Company, Inc.

New Paris Telephone

NewCore Wireless - Saint Cloud, MN

Nex-Tech Wireless

Nextiva, Inc.

Nice inContact

NineStar Connect

Nobelbiz, Inc.

Noble Systems Communications LLC

Northeast Communications of Wisconsin INC

Northwest Fiber

NOS Communications / ANI Networks

NTInet Inc

Number Access, LLC

Nunn Telephone Company

Nuso, LLC

NUVERA

Nuwave Communications, Inc.

One Ring Networks

OneStream Networks, LLC

ooma inc

OpenSIP.com LLC

OptimERA Inc

Optivon, Inc.

PanTerra Networks, Inc.

Paul Bunyan Communicaitons

PBXIO LLC

Peeringhub Inc

Peerless Network, Inc.

Phone.com, Inc.

Pigeon Telephone Company

Pineland Telephone Cooperative, Inc.

Pioneer Telephone COOP

Piratel LLC

PNG Telecommunications Inc

POPP.com, Inc dba POPP Communications

PTI Pacifica Inc. Dba IT&E

Puerto Rico Telephone

Quality Voice & Data Inc.

Quantum Telecommunications, Inc.

Rainbow Communications

Rapid Eagle Inc. DBA VOIP Essential Inc.

RC Technologies

RCLEC, INC.

RCN

ReInvent Telecom LLC

Reynolds Telephone Co.

Rhode Island Telephone, Inc.

Ringaro Telecom, Inc

Ritter Communications

Rochester Telephone Company, Inc.

Runestone Telephone Association 

Salina Spavinaw Telephone Company Inc.

Sandhill Telephone Coop

Santel Communications Cooperative, Inc.

Segra

Servpac, Inc.

Simwood Inc.

SIP.US LLC

Siskiyou Telephone Company

Skye Telecom LLC

SkyLine Telephone Membership Corp

Smartedgenet, LLC

Smithville Communications

Socket Telecom LLC

Sonic

South Central Rural Telecommunications Cooperative

South Dakota Network, LLC

Southern Communications Services, Inc. dba Southern Linc

Spring Grove Communications

Stratus Networks

Syringa Networks

Sytek

T3 Communications, Inc.

TCN Inc

TDS Telecommunications

Technology Innovation Lab

Telcast Networks LLC

Telcentris Inc. dba Voxox

Televox Communications, LLC

Teliax Inc.

TelNet Worldwide, Inc.

Telnyx LLC

Terra Nova Telecom Inc

TextMe, Incorporated

The Park Region Mutual Tel

The Pioneer Telephone Association, Inc.

Threshold Communications, Inc.

Tim Ron Enterprises, LLC

T-Mobile

Toly Digital Networks, Inc.

TouchTone Communications Inc.

Transtelco

Tri-County Telephone Association Inc

TrioTel Communications Inc.

True IP Solutions, LLC

Trumansburg Telephone Company

TRUSTID, Inc.

Twilio International, Inc.

Tychron Corporation

U.S. Cellular

U.S. Internet Corp.

U.S. TelePacific Corp.

Union Telephone Company

United Internet Services, LLC

UniVoIP

US IP Communications

USA Digital Communications, Inc.

Utility Telecom Group, LLC

Valley Telco Coop

Venture Communications Cooperative

Veracity Networks LLC

Verge Network Solutions, Inc

Verizon Communications Inc.

Viaero Wireless

Victory Telecom, Inc.

Vinculum Communications, Inc

Voice Ring, Inc.

VoIP Innovations

Volcano Telephone Company

Vonage

Votacall, Inc.

Voxbeam Telecommunications Inc.

VOXTELL, LLC

VOYANT COMMUNICATIONS LLC

Wabash Telephone Cooperative, Inc.

Wamego Telephone Co, Inc.

West Central Telephone Association

WEST RIVER COOPERATIVE TELEPHONE COMPANY, INC.

West River Telecom

West Side Telecommunications

Western New Mexico Telephone Co

Whidbey Telephone Company

Whisl Telecom LLC

WhiteSky Communications LLC

Wide Voice, LLC

WIKSTROM TELEPHONE CO INC

Windstream

Winn Telecom

Winnebago Cooperative Telecom Association

Wiretap Telecom

WOODSTOCK COMMUNICATIONS

WOW! Internet, Cable, and Phone

Xaccel Networks LLC

XCast Labs, Inc.

Xchange Telecom LLC

Xtel Communications Inc 

Yelcot

Ytel Inc.